foo.cc: In function 'int main()':
foo.cc:8:8: error: invalid operands of types 'double' and 'int' to binary 'operator%'
    8 |  a=(n-n%3)/3;
      |       ~^~
      |       | |
      |       | int
      |       double
foo.cc:9:8: error: invalid operands of types 'double' and 'int' to binary 'operator%'
    9 |  b=(n-n%4)/4;
      |       ~^~
      |       | |
      |       | int
      |       double

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